Morphological Evidences

Q.

What are the 5 Mass Extinctions?

Q.

What are the 5 mass extinctions on Earth?

Q. Choose the wrong statement

1. Louis Pasteur demonstrated that life comes only from pre-existing life
2. Flippers of penguins and dolphins are examples for homology
3. Analogous structures are the result of convergent evolution
4. SI Miller observed that electric discharge in a flask containing $C{H}_4,H_2,N{H}_3$ and water vapour at ${800}^{0}C$ formed amino acids

Q.

Statement 1: Bat's wing are seal's flipper are homologous.

Statement 2: They are different organs evolved to do the same function.

Select the incorrect option.

1. Statement 1 is true

2. Statement 1 is False

3. Statement 2 supports statement 1

4. Statement 2 doesn't support statement 1

Q.

What are the big 5 mass extinctions?

Q.

Out of wings of a bird, wings of an insect and wings of a bat.

Which two are examples of analogous organs?

Q.

Which among the following is not an evidence for organic evolution ?

1. Homologous organs

2. Fossils

3. Analogous organs

4. DNA sequence studies

Q. If you are asked to select a group of two vegetables, out of the following, having homologous structures which one would you select ?

(a) Carrot and radish

(b) Potato and sweet potato

(c) Potato and tomato

(d) Lady finger and potato

Q. Which among the following organisms might have a common ancestor?

1. A and B

2. A and C

3. B and C

4. A, B and C have a common ancestor

Q.

Consider the following examples:

1. Wings of a bat.

2. Flippers of a whale.

3. Wings of a butterfly.

4. Limbs of a human.

Which of the following are homologous organs?

1. 1, 2 and 4
2. 1, 2, 3 and 4
3. 1 and 2
4. 1, 2 and 3

Q. Consider the following statements and select the correct option.

Statement I: Analogous organs are the result of convergent evolution.
Statement II: Insect wing and bird wing are homologous organs.
Statement III: The marsupials in Australia and South America are examples of parallel evolution.

1. Statements I and II are correct
2. All statements are correct
3. Statements I and III are correct
4. Statements II and III are correct

Q. Which of the following sets contain only homologous organs?

1. Vermiform appendix, body hair and patella
2. Whale's flipper, horse's forelimb, human hand
3. Wings of butterfly, crow and insect
4. Horse's forelimb, insect wing, human hand

Q.

Write two evidences in favour of evolution

Q. The wings of a butterfly and the wings of a pigeon are said to be

1. adaptive organs
2. analogous organs
3. homologous organs
4. vestigial organs

Q.

Analogous organs are those which (are)_______________.

1. Non-functional
2. Functionally similar
3. Structurally identical
4. Share a common origin

Q.

Darwin toured to the ______ which helped him arrive at his theory of "Natural selection".

1. Beagle

2. Galapagos Islands

3. East Asia

4. Victoria Island

Q. Which among the following explains the relation between wings of a bat and claw of a mole?

1. They are homologous organs
2. They are analogous organs
3. Bat and mole had different ancestors
4. Bat and mole had a common ancestor

Q.

The eye of an octopus and the eye of a cat show different patterns of structure, yet they perform similar functions. This is an example of?

1. analogous organs that have evolved due to divergent evolution

2. analogous organs that have evolved due to convergent evolution

3. homologous organs that have evolved due to divergent evolution

4. homologous organs that have evolved due to convergent evolution

Q. The most studied and well-known mass extinction occurred ______________ .

1. 429 million years ago
2. 63 million years ago
3. 225 million years ago
4. 369 million years ago

Q.

When did the last dinosaurs die?

Q. Bat and butterfly wings cannot be helpful in the evolutionary study, because __________ .

1. they do not show any structural similarity
2. they do not show any common ancestry
3. they do not show any functional similarity
4. their evolutionary process is identical

Q. Choose the correct answers from the alternatives given .
The Galapagos Islands are located near to the

1. West coast of Africa
2. West coast of South America
3. West coast of North America
4. East coast of Australia

Q. Which of these pair of organs are non-homologous?

1. Forelimbs of bird and human
2. Forelimbs in lizard and frog
3. Forelimbs in humans and lizard
4. Wings in butterfly and bat

Q. Homologous organs have ___ .

1. similar origin but different functions
2. similar origin and the same function
3. different origin and different functions
4. different origin but same function

Q.

Consider the following examples:

1. Wings of a bat

2. Flippers of a whale

3. Wings of a butterfly

4. Limbs of a human

Which of the following are homologous organs?

1. 1, 2 and 3
2. 1, 2 and 4
3. 1, 2, 3 and 4
4. 1 and 2

Q. Analogous organs are those which are_______________.

1. Functionally similar
2. Structurally identical
3. Share a common origin
4. Non-functional

Q.

Consider the following examples:

1) Wings of a bat

2) Flippers of a whale

3) Wings of a butterfly

4) Limbs of a human

Which of the following are homologous organs?

1. 1, 2 and 3

2. 1, 2 and 4

3. 1, 2, 3 and 4

4. 1 and 2

Q.

Which of the following is a pair of homologous organs?

1. Pectoral fin of rohu and fore-limb of horse

2. Wings of grasshopper and wings of crow

3. Lungs of rabbit and gills of rohu

4. Wings of bat and wings of butterfly

Q. Can the wing of a butterfly and the wing of a bat be considered homologous organs? Why or why not? [2 MARKS]

Q. Which among the following explains the relation between wings of a bat and claw of a mole?

1. They are homologous organs
2. They are analogous organs
3. Bat and mole had different ancestors
4. Bat and mole had a common ancestor